OPNET - Building network model; Creating subnets; Naming; VPN Configuration; Application configuration; Profile configuration; Assigning Profiles; Assigning services; Assigning Printer; Assigning Profiles to users; Duplicating scenarios; Simulating scenarios - Collecting statistics, Running simulation, Results; Investigation of Results - Utilization of T1 Link, Average FTP download response time, HTTP page response time, Behavior of Voice & Video applications.